LedgerSMB is an accounting and ERP framework which aims to provide solid accounting, industry-leading security, and support for rapid development of business tools re-using accounting logic to support workflows of any specific business.

Dolibarr is a simple Web application with ERP and CRM capabilities. It is designed for small and medium companies, freelancers or foundations, and can be used to deal with all things you require to manage your activities, such as management of products, stocks, commercial proposals, invoices, orders, members of a foundation, and mailings. A single executable that installs the server and database
is available for people with no technical knowledge.

Adempiere is an ERP bazaar for open source developers that combines improvements from Compiere, CRM, shopfloor, POS, helpdesk, financial accounting, supply chain, knowledge, and business applications in an open and unabated fashion. Its focus is on the community.

Mantle Business Artifacts is a business application foundation built on the Moqui Framework. It includes a Universal Data Model (UDM), Universal Service Library (USL), and a Universal Business Process Library (UBPL). It includes functionality for order to cash, procure to pay, work plan to cash, and much more. It provides management of orders, invoices, payments, products, inventory, fulfillment, receiving, projects, tasks, requests, time and expense tracking and vendor/client billing, general ledger with configurable automated posting, etc. It is a generic foundation for custom and industry specific ERP, CRM, eCommerce, and general enterprise automation software.

Tryton Android is an Android client for the Tryton ERP system. It lets you access and edit your enterprise information (accounting, invoice, production, stocks, and more) from your Android terminal. It is a generic client like the gtk client, and should be compatible with all Tryton modules. It also contains an SVG parser for Android.

Freedom ERP is a business management system that can be used for retailers, wholesalers, manufacturers, service providers, call centers, and other organizations to provide inventory management, purchasing, sales, finance, and more. It has modules for customer management, campaign management, mailing, service management, collections, warranty control, management of production with production based on demand or stock of raw materials, and quality control.

TurnKey OpenBravo Appliance is a server appliance for Openbravo, a Web-based ERP business solution for small and medium sized businesses. It allows users to view the entire status of a company, including production information, inventory, customer information, order tracking, and workflow information. No configuration is required. It is designed to be easy to use and easy to maintain. Security patches are automatically installed. It provides a Web management interface, configuration console, and an AJAX Web shell. To minimize footprint the appliance is built from the ground up with the minimum required components. It runs everywhere thanks to multiple build formats, including an installable live CD, a VMDK with OVF support, and an Amazon EC2 AMI.

YaBS is enterprise resource planning software that manages products and contacts as basic data, generates offers, orders, invoices, and reminders from it, and includes basic book keeping. It writes PDF or ODF (OpenOffice format) documents, and is a multiuser system. It is the successor of MP Invoicing. It can use any JDBC compliant database as a backend, and works in heterogenous networks, allowing fine grained security settings. It can also be extended with modules.